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1 | /* -*-c-*- |
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2 | * |
3 | * The Rijndael block cipher, 256-bit version |
4 | * |
5 | * (c) 2001 Straylight/Edgeware |
6 | */ |
7 | |
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8 | /*----- Licensing notice --------------------------------------------------* |
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9 | * |
10 | * This file is part of Catacomb. |
11 | * |
12 | * Catacomb is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU Library General Public License as |
14 | * published by the Free Software Foundation; either version 2 of the |
15 | * License, or (at your option) any later version. |
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16 | * |
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17 | * Catacomb is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU Library General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Library General Public |
23 | * License along with Catacomb; if not, write to the Free |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
25 | * MA 02111-1307, USA. |
26 | */ |
27 | |
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28 | #ifndef CATACOMB_RIJNDAEL256_H |
29 | #define CATACOMB_RIJNDAEL256_H |
30 | |
31 | #ifdef __cplusplus |
32 | extern "C" { |
33 | #endif |
34 | |
35 | /*----- Header files ------------------------------------------------------*/ |
36 | |
37 | #ifndef CATACOMB_RIJNDAEL_H |
38 | # include "rijndael.h" |
39 | #endif |
40 | |
41 | /*----- Magical numbers ---------------------------------------------------*/ |
42 | |
43 | #define RIJNDAEL256_BLKSZ 32 |
44 | #define RIJNDAEL256_KEYSZ 32 |
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45 | #define RIJNDAEL256_CLASS (N, B, 256) |
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46 | |
47 | #define rijndael256_keysz rijndael_keysz |
48 | |
49 | /*----- Data structures ---------------------------------------------------*/ |
50 | |
51 | typedef struct rijndael_ctx rijndael256_ctx; |
52 | |
53 | /*----- Functions provided ------------------------------------------------*/ |
54 | |
55 | /* --- @rijndael256_init@ --- * |
56 | * |
57 | * Arguments: @rijndael_ctx *k@ = pointer to context to initialize |
58 | * @const void *buf@ = pointer to buffer of key material |
59 | * @size_t sz@ = size of the key material |
60 | * |
61 | * Returns: --- |
62 | * |
63 | * Use: Initializes a Rijndael context with a particular key. This |
64 | * implementation of Rijndael doesn't impose any particular |
65 | * limits on the key size except that it must be multiple of 4 |
66 | * bytes long. 256 bits seems sensible, though. |
67 | */ |
68 | |
69 | extern void rijndael256_init(rijndael_ctx */*k*/, |
70 | const void */*buf*/, size_t /*sz*/); |
71 | |
72 | /* --- @rijndael_eblk@, @rijndael_dblk@ --- * |
73 | * |
74 | * Arguments: @const rijndael_ctx *k@ = pointer to Rijndael context |
75 | * @const uint32 s[4]@ = pointer to source block |
76 | * @uint32 d[4]@ = pointer to destination block |
77 | * |
78 | * Returns: --- |
79 | * |
80 | * Use: Low-level block encryption and decryption. |
81 | */ |
82 | |
83 | extern void rijndael256_eblk(const rijndael_ctx */*k*/, |
84 | const uint32 */*s*/, uint32 */*dst*/); |
85 | extern void rijndael256_dblk(const rijndael_ctx */*k*/, |
86 | const uint32 */*s*/, uint32 */*dst*/); |
87 | |
88 | /*----- That's all, folks -------------------------------------------------*/ |
89 | |
90 | #ifdef __cplusplus |
91 | } |
92 | #endif |
93 | |
94 | #endif |